JP2015220005A - Board-to-board connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board connector capable of preventing damage of a female-side guide part and a male-side guide part and being suitably positioned.SOLUTION: A board connector 1 includes: a socket 7 having female-side guide parts 8, 8 with guide holes 22, on both sides thereof; and a plug 4 having a male-side guided bodies 9, 9 on both sides thereof, to be fitted in the guide holes 22. The plug 4 includes metal-made male-side reinforcement fittings 13, each of which integrally has a guided piece 12 covering at least a longitudinal end surface of the male-side guided body 9. The socket 7 includes metal-made female-side reinforcement fittings 31, each of which integrally has a guiding piece 30 arranged at least on a longitudinal inner peripheral surface part of the guide hole 22. The guided piece 12 and the guiding piece 30 integrally have introducing parts 14, 32, respectively, on the mating-side end edge parts, and the male-side guided body 9 is introduced in the inside of the guiding piece 30 by abutting the introducing parts 14, 32 to each other and sliding the same.

Description

  The present invention relates to a board-to-board connector for connecting a board and a board.

  Conventionally, for connection between a board and a board, a plug having a ridge-like plug part in which a plurality of plug-side signal terminals are arranged on a side part and a plug insertion groove into which each plug part is inserted are opposed to each other. A board connecting connector having a socket in which a plurality of socket side signal terminals are disposed on an inner side surface portion is used.

  The connector for board connection includes a female side guide portion having concave hole-shaped guide holes at both ends of the socket, and a male guided body fitted into the guide holes at both ends of the plug. By fitting the male guided body into the guide hole while being inserted, each plug portion is fitted at a desired position in each plug insertion groove, and both signal terminals come into contact with each other (for example, patents) Reference 1).

  In such a connector for board connection, in order to fit the male guided body smoothly into the female side guiding portion, a certain margin is provided for the fitting tolerance between the guide hole and the male guided body, In addition, a tapered guide part is formed on the upper opening edge of the female guide part, and a tapered guide part is formed on the lower peripheral edge part of the male guided body, and when connecting the socket and the plug, Both guide parts are abutted with each other, and the guided body is guided to the female side guide part by sliding from each other so that the positional deviation in the longitudinal direction and the short side direction between the socket and the plug can be absorbed. .

  On the other hand, such a board connector is known in which a metal reinforcing bracket is embedded in the peripheral wall portion of the female side guide portion to reinforce the strength of the female side guide portion.

JP 2010-97724 A

  However, in the conventional techniques as described above, when the male guided body is guided to the female side guiding portion, both or one of the guiding portion of the female guiding portion and the guiding portion of the male guided body is formed of an insulating resin. As a result, when the two guide portions are brought into contact with each other, the guide portions may be crushed and deformed due to insufficient rigidity, or the resin may be rubbed to generate cutting waste.

  Therefore, in view of such a conventional problem, the present invention has been made for the purpose of providing a board connection connector that can prevent the female side guide portion and the male side guided body from being damaged and can be suitably positioned. is there.

  The feature of the invention described in claim 1 for solving the conventional problems as described above and achieving an intended purpose is a protrusion having a plurality of conductive metallic plug-side signal terminals disposed on a side surface portion. And a socket having a plurality of socket-side signal terminals made of conductive metal disposed on mutually opposite inner side surfaces of a plug insertion groove into which each plug portion is inserted. Female side guides having guide holes at both ends, male side guided bodies fitted into the guide holes at both ends of the plug, and when the plug and socket are connected, the male side cover In the board connecting connector in which each of the plug portions is fitted at a desired position of each of the plug insertion grooves by guiding the guide body into the guide hole, the plug includes at least the male side cover. The longitudinal end face of the guide body A metal male side reinforcing metal fitting integrally having a guided piece for covering is provided, and the metal female side reinforcing member integrally having at least a guide piece arranged on the inner peripheral surface portion in the longitudinal direction of the guide hole is provided in the socket. Each of the guided pieces and each guide piece has a guide portion integrally on the other end edge portion, and the guide portions are slid against each other by sliding the guide portions against each other. In the connector for board connection, the male guided body is guided.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the male side reinforcing bracket integrally includes guided pieces that cover both lateral end surfaces of the male side guided body, The female side reinforcing bracket is provided with a pair of clamping pieces disposed on the inner peripheral surface portion of the guide hole facing each other in the short direction, and the male side reinforcing bracket and the female side reinforcing bracket include: A board connecting terminal piece connected to the mounting board is provided.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the female side reinforcing bracket includes a reinforcing piece portion embedded in each circumferential wall in the short side direction of the female side guide portion, and the clamping piece Is a support spring piece whose base end is integrally supported by the reinforcing piece portion, a folded portion folded back from the upper end of the support spring piece, and extended from the distal end of the folded portion, and protruded into the guide hole. It is formed in a spring shape having an elastic contact portion.

  According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the female-side reinforcing bracket is a reinforcing piece embedded in a peripheral wall at a longitudinal end portion of the female-side guide portion. The guide piece is supported on an upper edge of the reinforcing piece portion via a folded portion, and the folded portion forms the guide portion.

  According to a fifth aspect of the present invention, in addition to the configuration of any one of the first to fourth aspects, the male side reinforcing bracket includes a support plate portion that covers a lower surface of the male side guided body. The guided piece is supported on the periphery of the support plate portion via a folded portion, and the folded portion forms the guiding portion.

  As described above, the board connecting connector according to the present invention includes a plug having a ridge-shaped plug portion in which a plurality of conductive metal plug-side signal terminals are arranged on the side surface portion, and each plug portion is inserted. A socket in which a plurality of conductive metal signal terminals are disposed on the inner side surfaces of the plug insertion groove facing each other, and female side guide portions having guide holes at both ends of the socket, A male side guided body fitted into the guide hole is provided at both ends of the plug, and when the plug and the socket are connected, the male side guided body is guided to the guide hole, thereby each plug In the board connecting connector in which the portion is fitted at a desired position of each plug insertion groove, the plug integrally includes a guided piece that covers at least a longitudinal end surface of the male guided body. Metal The socket is provided with a metal female reinforcement fitting integrally having at least a guide piece disposed on the inner peripheral surface portion in the longitudinal direction of the guide hole, and each of the guided pieces and each of the guide pieces is provided. Each of the guide pieces has a guide part integrally at the other end edge part, and the male guided body is guided inside the guide piece by sliding the guide parts against each other. As a result, the guide portions that are slid against each other are each formed of a metal material, so that deformation due to crushing or the like due to insufficient rigidity can be prevented, and generation of shavings on the resin portion that occurs during sliding can be prevented.

  In the present invention, the male side reinforcing bracket integrally includes guided pieces that cover both side end surfaces of the male side guided body in the lateral direction, and the female side reinforcing bracket is opposed to each other in the lateral direction. A pair of sandwiching pieces that are arranged on the inner peripheral surface portion of the guide hole and project into the guide hole, and the male-side reinforcing metal fitting and the female-side reinforcing metal fitting are provided with a board connection terminal piece that is connected to a mounting board. Therefore, even if the male guided body is offset to one side in the short direction with respect to the guide hole in the fitting tolerance range of the guide hole and the male guided body, one of the guide pieces is always desired. Since contact is made at a pressure higher than the contact pressure, high contact stability can be ensured. Further, since the male guided body is sandwiched between both spring-like guide pieces arranged on the inner peripheral surface portion of the guide hole, the plug can be held in the socket with a high holding force even if vibration or impact occurs.

  Furthermore, in the present invention, the female-side reinforcing metal fitting includes a reinforcing piece portion embedded in each circumferential wall of the female-side guide portion, and a proximal end of the clamping piece is integrally supported by the reinforcing piece portion. A female-side guide, comprising: a supported spring piece; a folded portion folded back from the upper end of the support spring piece; and an elastic contact portion extending from the tip of the folded portion and projecting into the guide hole. The strength of the portion can be increased, and the sandwiching piece can be easily incorporated into the inner peripheral surface portion of the guide hole.

  In the present invention, the female-side reinforcing metal fitting includes a reinforcing piece portion embedded in a circumferential wall at a longitudinal end of the female-side guide portion, and the guide piece has a folded portion at an upper edge of the reinforcing piece portion. The strength of the female-side guide portion can be increased and the sandwiching piece can be easily incorporated into the inner peripheral surface portion of the guide hole.

  Further, in the present invention, the male-side reinforcing metal fitting is provided with a support plate portion that covers the lower surface of the male-side guided body, and each of the guided pieces is folded around a periphery of the support plate portion. By being supported and the folded portion forming the guiding portion, the guided piece can be easily incorporated into the male guided body.

It is a perspective view showing an example of a connector for board connection concerning the present invention. (A) is the longitudinal cross-sectional view same as the above, (b) is the AA sectional view taken on the line. It is an exploded perspective view same as the above. (A) is the front view which shows the plug in FIG. 1, (b) is the bottom view, (c) is the BB line longitudinal cross-sectional view, (d) is the CC line cross-sectional view. (A), (b) is a perspective view which shows the male side reinforcement metal fitting in FIG. (A) is the front view which shows the socket in FIG. 1, (b) is the top view, (c) is the DD line longitudinal cross-sectional view, (d) is the EE line cross-sectional view. (A), (b) is a perspective view which shows the female side reinforcement metal fitting in FIG. It is a partial expanded sectional view which shows the state of the female side guide part at the time of a connection.

  Next, an embodiment of the board connecting connector according to the present invention will be described based on the embodiment shown in FIGS. Reference numeral 1 denotes a board connecting connector used for board-to-board connection.

  In the present embodiment, the longitudinal direction refers to the longitudinal direction of the connector (the left-right direction in FIG. 2A), and the short direction refers to the short direction of the connector (in FIG. 2B). The vertical direction means the thickness direction of the connector (the vertical direction in FIG. 2).

  The board connecting connector 1 includes a plug 4 having projecting plug parts 3 and 3 in which a plurality of plug-side signal terminals 2, 2. A plurality of socket-side signal terminals 6, 6... Are provided on inner surface portions of the plug insertion grooves 5, 5 facing each other, and the plug 4 and the socket 7 mounted on the board are provided. By being connected to each other, both the mounting boards on which the plug 4 and the socket 7 are respectively mounted are electrically connected.

  The board connecting connector 1 is provided with female side guide portions 8 and 8 having concave hole-shaped guide holes 22 at both ends of the socket 7 and fitted to the female side guide portions 8 and 8 at both ends of the plug 4. The male side guided bodies 9 and 9 are provided, and the male side guided bodies 9 are fitted into the female side guiding portions 8 while guiding the male side guided bodies 9 into the guide holes 22, whereby the plug portions 3 and 3 are inserted into the respective plug insertion grooves. 5 and 5 are fitted at desired positions so that the corresponding signal terminals 2 and 6 come into contact with each other.

  In order to smoothly fit the male guided bodies 9 and 9 into the female guide portions 8 and 8, a certain margin is provided in the fitting tolerance between the guide hole 22 and the male guided bodies 9 and 9. ing.

  As shown in FIG. 4, the plug 4 includes a plug body 10 made of an insulating resin having projecting plug portions 3, 3, and a plurality of plug-side signal terminals 2, 2. It is integrated by insert molding.

  The plug body 10 is integrally formed of an insulating synthetic resin, and is arranged at a flat plate-like base portion 11, projecting plug-like plug portions 3, 3 projecting from the surface of the base portion 11, and both longitudinal ends. The male-side guided bodies 9 and 9 are formed, the base portion 11 and the plug portions 3 and 3 form a U-shaped cross-section that is continuous in the connector longitudinal direction, and both plug portions 3 and 3 and both ends thereof A rectangular frame shape is formed by the male guided bodies 9 and 9 arranged in the above.

  Further, the plug 4 includes a male-side reinforcing metal fitting 13 having a metal guided piece 12 that covers at least a longitudinal side end surface portion of a male-side guided body 9 formed in a rectangular parallelepiped shape. Has a guiding portion (hereinafter referred to as a plug-side guiding portion 14) integrally on the joining side edge (lower surface peripheral edge portion), and slides the plug-side guiding portion 14 against the socket-side guiding portion. Thus, the male guided body 9 is guided into the guide hole 22.

  Further, the male side reinforcing metal fitting 13 is provided with a pair of guided pieces 15 and 15 that cover both end faces in the short direction of the male side guided body 9, and the male side guided body 9 and 9 are integrally molded on the outside of the male side guided body 9 and 9. By assembling the side reinforcing metal fittings 13, the three side end surfaces of the male guided bodies 9 and 9 are covered with the guided pieces 12 and 15.

  As shown in FIG. 5, the male side reinforcing metal fitting 13 is integrally formed by punching and bending a conductive metal plate material, and is perpendicular to the rectangular plate-like support plate portion 16 and the three sides of the support plate portion 16. Each of the guided pieces 12 and 15 is bent in the direction.

  Each of the guided pieces 12 and 15 is formed in a rectangular shape extending vertically upward via a folded portion bent in an arc shape from each side of the support plate portion 16, and the male side reinforcing metal fitting 13 is attached to the plug body 10. By being assembled, the metal folded portion covers the corner portion made of the insulating resin to form the plug side guiding portion 14.

  In addition, the board connection terminal piece 17 fixed to the pattern of a mounting board by solder etc. is integrally provided in the edge on the opposite side to the plug side induction | guidance | derivation part 14 of both the to-be-guided pieces 15 and 15. A rectangular hole-shaped engaging recess 18 is formed at the center of the guided piece 12.

  As shown in FIG. 6, the socket 7 includes a socket body 20 made of an insulating resin and a plurality of socket-side signal terminals 6, 6... Made of a conductive metal material. It is formed by incorporating terminals 6, 6.

  The socket body 20 is integrally formed of an insulating synthetic resin, and has a flat plate-like fitting portion 21 and female-side guide portions 8 and 8 having guide holes 22 arranged at both ends in the longitudinal direction of the fitting portion 21. It has.

  The fitting portion 21 includes side wall portions 24 and 24 having a shape raised from both side edges of the flat bottom plate portion 23 in the connector width direction, and a central convex portion 25 disposed at the center portion of the bottom plate portion 23. Recessed plug insertion grooves 5 and 5 into which the plug parts 3 and 3 are inserted are formed in a parallel arrangement at intervals in the connector width direction between the parts 24 and 24 and the central convex part 25.

  The female side guide portions 8, 8 are arranged in the longitudinal direction on both sides in the longitudinal direction and the side wall portions 24, 24 of the fitting portion 21 and are opposed to each other in the lateral direction. The peripheral wall portions 27, 27 are provided, and the rectangular hole-shaped guide hole 22 is formed in the vertical direction (connection direction) surrounded by the peripheral wall portion 26, the peripheral wall portions 27, 27 and the end face of the fitting portion 21. .

  The female side guide portions 8, 8 are assembled with a female side reinforcing bracket 31 having a metal guide piece 30 disposed on the inner peripheral surface portion of the guide hole 22 in the longitudinal direction. A guide portion (hereinafter referred to as a socket side guide portion 32) is integrally formed on the side edge portion, and the male side guided body 9 is guided by sliding the socket side guide portion 32 against the plug side guide portion 14 together. It is guided in the hole 22.

  Further, the female side reinforcing metal fitting 31 is provided with a pair of holding pieces 33, 33 arranged on the inner peripheral surface portion of the guide hole 22 facing each other in the short direction and projecting into the guide hole 22. 33 hold the male guided body 9 in the short direction.

  As shown in FIG. 7, the female-side reinforcing bracket 31 is integrally formed by punching and bending a conductive metal plate material having elasticity, and a U-shaped reinforcing portion 34 embedded in the peripheral wall of the female-side guide portion. The guide piece 30 and the holding pieces 33, 33 are supported by the reinforcing portion 34, respectively.

  The reinforcing portion 34 is a plane having a strip-like longitudinal reinforcing piece portion 35 and a pair of short-side reinforcing piece portions 36, 36 formed in a shape bent vertically from both side edges of the longitudinal reinforcing piece portion. The reinforcing portion 34 is fitted into a U-shaped embedded groove 37 formed in the peripheral wall portions 26, 27.

  In addition, a board connection terminal piece 38 connected to the connection pattern of the mounting board is provided at the lower edge of both the reinforcing piece parts 36, 36, and the male and female reinforcing metal fittings 16, 31 are mainly used for power connection between boards. I am trying to use it.

  The guide piece 30 is formed in a flat plate shape extending downward through a folded portion (socket side guiding portion 32) folded back in an arc shape from the upper edge of the long side reinforcing piece portion 35, and the folded portion is formed on the peripheral wall portion 26. The socket side guiding portion 32 is formed by covering the upper edge.

  An engaging protrusion 39 protrudes from the surface at the lower center of the guide piece 30, and this engaging protrusion 39 engages with the engaging recess 18 formed in the guided piece 12 of the male side reinforcing bracket 13. By doing so, the plug 4 and the socket 7 are locked.

  The sandwiching pieces 33, 33 include a supporting spring piece 40 whose base end is integrally supported by the reinforcing piece portion 36, a folded portion 41 that is folded inward in an arc shape from the upper end of the supporting spring piece 40, and a distal end of the folded portion 41. It has a U-shaped spring shape that includes an elastic contact portion 42 that extends more obliquely downward and protrudes into the guide hole 22, and the support spring piece 40, the folded portion 41, and the elastic contact portion 42 are supported by the reinforcing piece portion 36. It is made.

  The clamping pieces 33, 33 guide the male guided bodies 9, 9 into the guide holes 22, and after fitting, the contact 43 formed at the tip of the elastic contact portion 42 is a guided piece of the plug 4. 13 and 13 are brought into contact with a desired contact pressure.

  The board connecting connector 1 configured as described above has guide portions 14 and 32 integrally at the joining side edge portions of the metal guided piece 12 and the guide piece 30, respectively. As shown in FIG. 8, when the male guided body 9 is guided into the guide hole 22, the guiding portions 14 and 32 are made to slide against each other, so that the guiding portions 14 and 32 are made of metal. Therefore, deformation such as crushing due to insufficient rigidity can be prevented when they are abutted, and resin scraping during sliding can be prevented.

  Further, as shown in FIG. 2 (b), the board connecting connector 1 is formed in a spring shape in which the elastic contact portions protrude into the guide hole 22 with both sandwiching pieces 33, 33 facing each other in the short direction. As a result, even if the male guided bodies 9 and 9 are offset to one side in the short direction with respect to the guide hole 22 in the fitting tolerance crossing range of the guide holes 22 and the male guided bodies 9 and 9. Since either one of the sandwiching pieces 33, 33 always contacts at a desired contact pressure or higher, high contact stability can be ensured.

  Further, since the board connecting connector 1 has a structure in which the male guided body 9 is sandwiched between the spring-like holding pieces 33 and 33 arranged on the inner peripheral surface portion of the guide hole 22, vibration and impact are generated. Even so, the plug 4 can be held in the socket 7 with a high holding force.

  In addition, the aspect of a clamping piece is not limited to the above-mentioned Example, For example, you may make it use the folding | returning part and elastic contact part of a clamping piece as an induction | guidance | derivation part which mutually faces and slides with the plug side induction | guidance | derivation part 15. .

  Further, the example in which the spring-shaped sandwiching pieces are provided on the inner peripheral surface portions of the guide hole 22 facing each other has been described, but a metal guide piece covering the inner peripheral surface of the guide hole 22 is arranged instead of the sandwiching piece. In addition, a guide portion that guides the male-side guided body 9 into the guide hole 22 by abutting and sliding with the plug-side guide portion 15 at the upper edge portion of the guide piece may be integrally provided.

DESCRIPTION OF SYMBOLS 1 Board connector 2 Plug side signal terminal 3 Plug part 4 Plug 5 Plug insertion groove 6 Socket side signal terminal 7 Socket 8 Female side guide part 9 Male side guided body 10 Plug main body 11 Base part 12 Guided piece 13 Male side reinforcement Metal fitting 14 Plug side guide part 15 Guide piece 16 Support plate part 17 Board connection terminal piece 18 Engaging recess 20 Socket body 21 Fitting part 22 Guide hole 23 Bottom plate part 24 Side wall part 25 Central convex part 26, 27 Peripheral wall part 30 Guide Piece 31 Female side reinforcing bracket 32 Socket side guide portion 33 Holding piece 34 Reinforcing portion 35, 36 Reinforcing piece portion 37 Embedded groove 38 Substrate connecting terminal piece 39 Engaging protrusion 40 Support spring piece 41 Folding portion 42 Elastic contact portion 43 Contact point

Claims (5)

A plug having a ridge-shaped plug portion in which a plurality of conductive metal plug-side signal terminals are arranged on the side surface portion, and a conductive metal property on the inner side surface portions of the plug insertion grooves in which the plug portions are inserted are opposed to each other. And a socket on which a plurality of socket side signal terminals are disposed,
A female side guide portion having guide holes at both ends of the socket, a male side guided body fitted into the guide holes at both ends of the plug, and when connecting the plug and the socket, In the connector for board connection in which each plug portion is fitted at a desired position of each plug insertion groove by guiding the male guided body into the guide hole,
The plug includes a male reinforcing metal fitting made of metal having a guided piece integrally covering at least a longitudinal end surface of the male guided body,
The socket is provided with a metal female reinforcing metal fitting integrally having at least a guide piece disposed on an inner peripheral surface portion in the longitudinal direction of the guide hole,
Each of the guided pieces and each of the guide pieces has a guide portion integrally on the other end edge portion, and the guide portions are slid against each other to slide the guide portions inside the guide pieces. A connector for board connection, characterized in that the body is guided.   The male-side reinforcing bracket integrally includes guided pieces that cover both lateral end surfaces of the male-side guided body, and the female-side reinforcing bracket includes inner guide holes that are opposed to each other in the lateral direction. 2. The device according to claim 1, further comprising: a pair of sandwiching pieces that are disposed on the peripheral surface portion and project into the guide hole, and the male-side reinforcing metal fitting and the female-side reinforcing metal fitting are provided with board connecting terminal pieces that are connected to a mounting board. Board connector.   The female-side reinforcing metal fitting includes a reinforcing piece portion embedded in each peripheral wall in the short direction of the female-side guide portion, and the sandwiching piece includes a supporting spring piece whose base end is integrally supported by the reinforcing piece portion. 3. The spring according to claim 2, wherein the support spring piece is formed in a spring shape including a folded portion folded inward from an upper end of the support spring piece, and an elastic contact portion extending from the tip of the folded portion and projecting into the guide hole. Board connector.   The female side reinforcing bracket includes a reinforcing piece portion embedded in a circumferential wall at a longitudinal end of the female side guide portion, and the guide piece is supported on an upper edge of the reinforcing piece portion via a folded portion, The connector for board | substrate connection of any one of Claims 1-3 in which a folding | returning part forms the said guidance | induction part.   The male side reinforcing bracket includes a support plate portion that covers a lower surface of the male side guided body, and each of the guided pieces is supported on a periphery of the support plate portion via a folded portion, and the folded portion The board connector according to any one of claims 1 to 4, wherein the guide part is formed.

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